Corrected entry: During the "almost dance off" at the homecoming dance, Britney takes off here earrings and then in the next scene they are back on.

Correction:Actually, if you watch the scene closely, you can see as the camera changes back and forth between "hold my sh**" and the actual cheer scene, you can seen Britney putting her earrings back on, starting with the left ear.

In the cafeteria scene, when Britney sits down and the other girls move away, there is rubbish on the table and a can of Pepsi, but after looking at her phone message she stands up and the table is completely clear of the rubbish.